[Correlation between pregnancy-induced hypertension and age in pregnant women from Hebei province, 2016]

Objective: To analyze the correlation between age and pregnancy-induced hypertension (PIH) in pregnant women from Hebei province in 2016. Methods: A retrospective analysis was conducted by using the clinical data of 64 909 pregnant women, delivering in 22 hospitals in Hebei in 2016. Descriptive statistics was used to describe the general data and pregnancy outcomes of pregnant women, and χ(2) test was used to compare the incidence of PIH in different age groups, and logistic regression analysis was used to analyze the risk factors for PIH. Results: The incidence of PIH was lowest in 20-29 year old women, and increased obviously in those aged<20 and>35 years (P<0.05), and the incidence was positively correlated with age. Logistic regression analysis showed that age, times of pregnancy, number of previous cesarean section and fetus number of current pregnancy were the risk factors for PIH (OR=1.293, 1.153, 1.307, 3.607), while times of deliver and times of prenatal examination were the protective factors (OR=0.655, 0.951). Conclusion: Advanced age pregnancy and young age pregnancy would significantly increase the incidence of PIH. Prenatal care should be strengthened for pregnant women at risk for PIH.